Lesson 1 - Bones of the Body
Bones play an important part in
the overall function of your body. They provide a frame for your body,
they protect vital organs such as your heart, and they even produce
blood that is used by your body. When you walk or run, it is because
your bones and muscles are working together. If we had no bones in our
bodies, we would just collapse like a big glob of jelly. If you tap your
chest you feel your breastbone (sternum) protecting the
structures underneath such as your heart and lungs.
Run your hands down your back and you feel your backbone
which gives you support. The spinal column or vertebrae lets
you stand upright and protects the spinal cord, which is part of
the nervous system. When the spinal cord is damaged, people are often
paralyzed or lose function in some part of their bodies, so protecting
this structure is very important.